linux-kernel - Re: [PATCH v2 01/11] crypto: Documentation

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Message-ID: <5457A4E0.30109@amd.com>
Date:	Mon, 3 Nov 2014 09:53:04 -0600
From:	Tom Lendacky <thomas.lendacky@....com>
To:	Herbert Xu <herbert@...dor.apana.org.au>
CC:	Stephan Mueller <smueller@...onox.de>,
	Jonathan Corbet <corbet@....net>,
	"David S. Miller" <davem@...emloft.net>,
	Marek Vasut <marex@...x.de>,
	"Jason Cooper" <cryptography@...edaemon.net>,
	Grant Likely <grant.likely@...retlab.ca>,
	Geert Uytterhoeven <geert@...ux-m68k.org>,
	Linux Kernel Developers List <linux-kernel@...r.kernel.org>,
	<linux-crypto@...r.kernel.org>
Subject: Re: [PATCH v2 01/11] crypto: Documentation - crypto API high level
 spec

On 11/03/2014 08:49 AM, Herbert Xu wrote:
> On Mon, Nov 03, 2014 at 03:18:29PM +0100, Stephan Mueller wrote:
>>
>>>> + * CRYPTO_ALG_TYPE_DIGEST	Raw message digest
>>>> + * CRYPTO_ALG_TYPE_HASH		Alias for CRYPTO_ALG_TYPE_DIGEST
>>>> + * CRYPTO_ALG_TYPE_SHASH	Synchronous multi-block hash
>>>> + * CRYPTO_ALG_TYPE_AHASH	Asynchronous multi-block hash
>>>> + * CRYPTO_ALG_TYPE_RNG		Random Number Generation
>>>> + * CRYPTO_ALG_TYPE_PCOMPRESS
>>>
>>> What's that last one?
>>
>> Same here.
>
> pcompress is an enhanced version of compress allowing for piece-meal
> compression/decompression rather than having to shove everything in
> all at once.
>
> Eventually pcompress should replace the compress interface once
> everything is converted across.

Herbert, I was looking at adding async support for ALG_TYPE_COMPRESS
since the CCP device will support compression/decompression but only
as an everything at once invocation.  Given what you're saying about
pcompress replacing compress, would this be something you'd even
consider though?

Thanks,
Tom

>
> Thanks,
>
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